Updates inline with ArduPilot#6265 (comment)

common/source/docs/common-esp8266-telemetry.rst

@@ -14,8 +14,8 @@ The ESP8266 wifi module is an inexpensive programmable wifi modules available fr
 
 Where to Buy
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-- The `Beyond Robotix - Kahuna <https://www.beyondrobotix.com/products/kahuna>`__ is a ready to use ESP8266 module that connects directly to an autopilot. It is pre-flashed with ardupilot firmware, connects directly to the Pixhawk range of products and has a u.fl connector for an external antenna. Further documentation for this unit is found `here <https://docs.google.com/document/d/1VyOsp9_q6dIAdYdWuDFcWoqqrNy_vbFMANubZA3Uz5g/edit?usp=sharing>`__.
 - The `adafruit HUZZAH ESP8266 breakout board <https://www.adafruit.com/product/2471>`__ can be connected to an autopilot without the need for 3.3V regulator or level shifters.
+- The `Beyond Robotix - Kahuna <https://www.beyondrobotix.com/products/kahuna>`__ is a ready to use ESP8266 module that connects directly to an autopilot. The Kahuna is pre-flashed with a fork of ardupilot firmware, has a JST-GH connector to connect easily to several off-the-shelf autopilots and has a u.fl connector for an external antenna. Further documentation for this unit is found `here <https://docs.google.com/document/d/1VyOsp9_q6dIAdYdWuDFcWoqqrNy_vbFMANubZA3Uz5g/edit?usp=sharing>`__.
 
 Connecting to an autopilot
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